Sarcoidosis
What Is Vitamin B12 Deficiency Anemia? [dropcap]V itamin B12 deficiency anemia is a megaloblastic anemia that is characterized by defective DNA synthesis of red blood cells due to a lack of vitamin B12. Vitamin B12 is…
What Is Vitamin B12 Deficiency Anemia? [dropcap]V itamin B12 deficiency anemia is a megaloblastic anemia that is characterized by defective DNA synthesis of red blood cells due to a lack of vitamin B12. Vitamin B12 is…
What Is Dysphagia? [dropcap]D ysphagia is a functional upper digestive disorder characterized by difficulty in swallowing or food getting stuck and swallowing that takes longer than 10 seconds to complete. Q: What determines the symptoms?…

[dropcap]E sophageal motor abnormalities are disorders of the esophagus involving altered muscular motility characterized by impaired esophageal peristalsis, or the progressive wave-like movement that occurs automatically when food or fluids are swallowed.
Q: What is altered motility?
A: Altered motility describes the lack of coordinated muscular movements or weak muscular movement needed to rapidly propel food and fluids through the highly muscular esophagus from the throat to the stomach.
The esophagus is a tube-like organ that begins at the cricoid cartilage (Adam’s apple) as a continuation of the pharynx and ends at the lower esophageal sphincter (LES).
The LES is a very strong, circular muscle surrounding the junction of the esophagus and stomach. The LES opens to allow swallowed food and liquids to enter the stomach and closes to prevent their travelling back into the esophagus.
Failure of the lower esophageal sphincter to remain tightly closed after swallowing allows stomach contents to reenter the esophagus giving symptoms of heartburn.
On the other hand, failure of the LES to relax traps the contents of the esophagus so that it cannot quickly empty into the stomach as it should. Because the esophagus is not designed to hold food/fluids, the abnormal expansion results in pain, anxiety and possibly vomiting and choking. If the contents are aspirated into the windpipe upon choking, there will be coughing with attempts to clear it.
Abnormal enlargement of lymph nodes greater than 1.5 cm caused by proliferation (increased production) of lymphocytes within the node. Click for full description.
Malignancies that arise in lymphatic tissue outside the intestinal tract. Click for full description.